[mythtv] Re: [mythtv-commits] mythtv commits (improperly dropping DVB channels)

[Taylor Jacob]

Quoting Wendy Seltzer <wendy at seltzer.com>:

> This or the previous commit on the DVB code seems to kick in even
> when a sub-channel is temporarily off-air, and even when I haven't
> requested a re-scan.  Plus, it's overwriting the existing channel set
> and losing the xmltvid.
>
> Specifically, my PBS affiliate (KQED) broadcasts 4 SD channels during
> the day and 2 HD at night.  If I tune to one at night, I lose the
> other 3 from the channels table, and even though I've numbered them
> 901-905, I wind up with those dropped and new channels 91 and 92
> added.  (If I tune during the day, I wind up with 91-95.)  This seems
> like a bug, since I still want to be able to schedule recordings for
> the times 92-95 are on-air.
>
> Pre-weekend code scanned ATSC channels and retained them without problems.

Are you saying that the VCT that KQED is sending changes at night when they
change their programming?  They are supposed to list all channels they have
constantly and just mark them as off the air, not change the program listings
twice a day..   Can you dump your TVCTs for this station using dvbsnoop (or
send me the -v siparser output [the text channel found is what im mostly
looking for]) during the day and night?  If this is the case you may need to
give them a call.. The myth code is supposed to re-build your channel lists
using the VCT whenever it changes, otherwise you really are taking no advantage
of digital tv, but I don't believe the VCTs are supposed to be implimented like
you are describing..

As far as the numbering issue I can see why that is a problem with this fix as
many people have chosen to re-number their channels.. I had the situation where
the serviceid changed but hte channel numbers stayed the same and my channels
table got screwed up and this seemed like the way to fix it.. I will see if I
can change this so it will leave custom numbering schemes alone..

As far as the XMLTV ids vanishing I am working on fixing this now, but I don't
think I will have it taken care of as I am heading to Arizona tomorrow and
won't be back until sunday..

Taylor